9 



different areas are very similar in general character and 

 sequence, and probably represent erosion remnants of a 

 continuous, or nearly continuous sheet, which spread 

 across the gulf and filled the depression it occupies to a 

 height of about 300 feet (91 m.) above the present water 

 level. 



Valdez Island. The depression between the Coast 

 range and Vancouver island is occupied north of the gulf 

 of Georgia by the Valdez islands. They are separated 

 from Vancouver island by a narrow strait, swept at the 

 Seymour Narrows constriction by strong tidal currents. 



The Valdez islands are situated along the contact 

 between the batholithic rocks of the Coast range, and the 

 bordering volcanics and sedimentaries, and like Texeda 

 island are extensively mineralized. 



Queen Charlotte Sound. North of the Valdez 

 islands the channel between Vancouver island and the 

 mainland gradually opens out into the Queen Charlotte 

 sound, an irregular island-filled body of water extending 

 northwestward to the head of Vancouver island. The 

 numerous rocky islands in the sound are built mostly of 

 massive and fragmental volcanics of Triassic age associated 

 with argillites, quartzites and limestones. An outlier of 

 coal-bearing Cretaceous strata occurs on the Vancouver 

 island side opposite Malcolm island. Granitic batholithic 

 rocks outcrop all along the mainland coast. 



Fitzhugh Sound. North of Vancouver island, an 

 open stretch of water exposed to the Pacific, about 25 

 miles (42 km.) in width, is crossed to Fitzhugh sound 

 between Calvert island and the mainland. North of this 

 point nearly to the mouth of the Skeena, a distance of 

 150 miles (241 km.), the ordinary steamship route follows 

 a succession of narrow, often extremely picturesque, 

 channels separating an almost continuous line of rocky, 

 granitic islands from the mainland. The coast line is 

 indented with numerous bays and deep fiords. Dean 

 canal, one of these fiords, with its continuation, the valley 

 of Salmon river, cuts completely across the Coast range. 



Princess Royal Island. This is the largest island 

 on the route north of Vancouver island. It is mountainous 



